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Use the Saltwater Circuit Kit to help power a light bulb and a buzzer. It sounds crazy, but it's true! This happens because saltwater is a good conductor of electricity.
This kit contains all the harder-to-find science supplies, like copper wire, and mini bulb and holder, you'll need to create a saltwater circuit. You provide common household items, like water, salt, aluminum foil, and adult supervision. Get the complete materials list and step-by-step instructions.
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